Question

每当我想显示我的卡时，它就会给我错误。

我想将其显示为列表。

class Card:
   suits = ["H", "D", "C", "S"]
   values = ["2","3","4","5","6","7","8","9","T","J","Q","K","A"]
   def __init__(self, value, suit):
     self.value, self.suit = value, suit
   def __str__(self):
     return self.values[self.value] + " of " + self.suits[self.suit] 

class Deck:
   def __init__(self):
      self.decks = []
      for x in range(13):
        for y in range(4):
           self.decks.append(Cards(x, y))
   def __str__(self):
      return self.decks

   def printcard(self):
      print self.decks

def main():
  n=Deck()
  n.printcard()

Output:
  [<__main__.Card instance at 0x0000000002694388>, <__main__.Card instance at 
  0x00000000026944C8>, <__main__.Card instance at 0x0000000002697C08>, 
  <__main__.Card instance at 0x0000000002697C48>, <__main__.Card instance at 
  0x0000000002697C88>, <__main__.Card instance at 0x0000000002697CC8>]

Answer 1

打印Cards打印__repr__个对象的列表。

由于您没有为Cards对象定义__str__方法（string方法仅对转换为list有用，但转换为字符串不是在表示print(self.decks[0])个对象时使用，仅适用于Cards），您只需获得默认表示：对象地址。

由于您没有提供__repr__课程，因此我创建了一个具有正确class Card: suits = ["H", "D", "C", "S"] values = ["2","3","4","5","6","7","8","9","T","J","Q","K","A"] def __init__(self, value, suit): self.value, self.suit = value, suit def __repr__(self): return self.values[self.value] + " of " + self.suits[self.suit] class Deck: def __init__(self): self.decks = [] for x in range(13): for y in range(4): self.decks.append(Card(x, y)) def printcard(self): print(self.decks) n=Deck() n.printcard()定义的模型：

[2 of H, 2 of D, 2 of C, 2 of S, 3 of H, 3 of D, 3 of C, 3 of S, 4 of H, 4 of D, 4 of C, 4 of S, 5 of H, 5 of D, 5 of C, 5 of S, 6 of H, 6 of D, 6 of C, 6 of S, 7 of H, 7 of D, 7 of C, 7 of S, 8 of H, 8 of D, 8 of C, 8 of S, 9 of H, 9 of D, 9 of C, 9 of S, T of H, T of D, T of C, T of S, J of H, J of D, J of C, J of S, Q of H, Q of D, Q of C, Q of S, K of H, K of D, K of C, K of S, A of H, A of D, A of C, A of S]

现在我按照预期得到了这个结果：

<table>

我想显示我的卡列表，但我收到了错误

1 个答案: